Orenfell, Rest of Ancients

Orenfell, Rest of Ancients enters the battlefield
with 5 ward counters on it.
{2}{t}, Sacrifice a Creature: Remove a ward counter
from Orenfell, Rest of Ancients.
When Orenfell, Rest of Ancients has no ward counters on it, sacrifice it. If you do, create Oren
Jax, a legendary 10/10 green and black Dragon creature token with flying and indestructible.
{t}: Put a +1/+1 counter on Target 1/1 creature
that entered the battlefield this turn.